fn main() {
    let mut nxy = String::new();
    std::io::stdin().read_line(&mut nxy).ok();
    let nxy: Vec<isize> = nxy.trim().split_whitespace().map(|s| s.parse().unwrap()).collect();
    let n = nxy[0] as usize;
    let x = nxy[1];
    let y = nxy[2];
    let x = x * x;
    let x = x as usize;
    let y = y * y;
    let y = y as usize;
    let mut r = String::new();
    std::io::stdin().read_line(&mut r).ok();
    let mut r: Vec<usize> = r.trim().split_whitespace().map(|s| s.parse().unwrap()).collect();

    r.sort();
    let summary = r.iter().sum::<usize>();
    let maxdist = summary * 2 - r[0];
    let mindist = if n > 1 { 0 } else { r[0] };
    if mindist*mindist > x+y || maxdist*maxdist < x+y {
        println!("No");
    } else {
        println!("Yes");
    }
}